Get someone to either summon you there (via the guild level 22 "Have group will travel spell" is easiest) or if you don't know anyone in a level 22 guild you can have someone fly you from Eastern Kingdoms to Vashj'ir (using a 2 person flying mount).
And if I remember correctly you can discover all of Vashj'ir's subzones by swimming around right at the top on the water so you don't actually need to die, takes a while to swim around but you can discover the whole zone without dying at all.
EDIT: Too fast for me Chill